Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a0513d8e6f55bc3…

MALICIOUS

PDF

46.7 KB Authoring application: Poppler-utils
MD5: a148cadfab3d5af83095201962d24a63 SHA-1: 2dc40d0501579e7533b8689cb15ddc26d5e89a85 SHA-256: 9a0513d8e6f55bc362d2f8dd2a2c61c4398946161b1e40046126160c809f562b
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDF files hosted on various domains. This behavior is indicative of a link farm or redirection scheme, commonly used in phishing or malware distribution campaigns. The ClamAV detection and ML classifier strongly suggest malicious intent, aligning with the PDF_SEO_LINK_FARM heuristic.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://rebirthproductions.com/uploads/1/3/0/5/130543976/sekovufajopeb-fozaji.pdf
    • http://aurorazintzer.com/uploads/1/3/0/5/130551004/0474fcc63059.pdf
    • http://beingself-centered.com/uploads/1/3/0/2/130272483/xelit.pdf
    • http://swervegarden.com/uploads/1/3/0/7/130775704/moxowimisumirilef.pdf
    • http://violetowlwellness.com/uploads/1/3/0/6/130639805/1166303.pdf
    • http://dbsarah.com/uploads/1/3/0/6/130620492/9a22fd.pdf
    • http://divinefaithtarot.com/uploads/1/3/0/5/130550703/b748307dcb.pdf
    • http://eterprai.com/uploads/1/3/0/2/130287883/a7887172.pdf
    • http://stat360design.com/uploads/1/3/0/5/130551856/754651.pdf
    • http://chariotskzn.co.za/uploads/1/3/0/6/130620508/6273007.pdf
    • http://www.bjornmaroten.com/uploads/1/3/0/7/130738915/gotivojujawez-ridanivotukarap.pdf
    • http://petatomic.com/uploads/1/3/0/8/130874316/b3785e.pdf
    • http://dedicated-15.pleasingfood.com/uploads/1/3/0/2/130270748/7449860.pdf
    • http://marienui.com/uploads/1/3/0/6/130604541/gaweg-buzateretof.pdf
    • http://dogodogo.ru/uploads/1/3/0/2/130288502/japujuped.pdf
    • http://creationsbyintention.com/uploads/1/3/0/4/130476243/jenexokapeji-lojedaluki-furovifide.pdf
    • http://ashleyandjeffery.com/uploads/1/3/0/4/130491852/zajokufakosebaz_vaxif.pdf
    • http://www.sjhameed.com/uploads/1/3/0/5/130551091/nezime.pdf
    • http://banyantreeconsulting.co.uk/uploads/1/3/0/2/130272636/5655211.pdf
    • http://ymslivingston.com/uploads/1/3/0/6/130604782/zasusev-barumetinejiz-riveguno.pdf
    • http://storageunitscenter.com/uploads/1/3/0/5/130551049/buvajumubodivazune.pdf
    • http://legoninjas.com/uploads/1/3/0/8/130814176/380216a.pdf
    • http://mynaturalwellnesscoach.com/uploads/1/3/0/5/130543373/nipugotopijizima.pdf
    • http://mobilemechanicedinburgh.com/uploads/1/3/0/6/130639884/72ef7f68867d.pdf
    • http://meyersmpg.com/uploads/1/3/0/6/130605253/1839663.pdf
    • http://cloud.sentinel-air.com/uploads/1/3/0/7/130775364/130775364.html#gluconato+de+calcio+hiperkalemia+mecanismo+de+accion

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e4c.bin
1f706bab60b4874f5aedc171d5d7ba51f2e1399a77e533dbf1430790cc2231ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E4C 10164 bytes

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